Jeffrey Gray

MATH220 · STATS117 · MATH131 · MATH117 · MATH04 · MATH150 · MATH138 · MATH210 · MATH107 · 93 lifetime ratings

AI rating: 33/100
RMP rating: 3.1/5
Take again: 43.75%
Difficulty: 4.0

The decision

Only take Gray if and ; otherwise avoid.

Best fit · Self Taught ProTough graderHeavy homeworkBelittling complaintsSelf-teach heavyPolarizing upper-level math

Passionate and helpful for strong, self-driven math students who use office hours
Many lower-level and stats students report , harsh tone, and unfair tests
Workload is high with , and slow grading especially online

Key questions

Four answers before you build your schedule.

Is this an easy A?

HardWork

27/100

Even strong students often land B or C ranges because , and strict grading demand constant grind.

Both formats report hard grading; .

Is the course easy?

Challenging

24/100

Fast lectures, dense packets, and self-study expectations make content feel significantly harder than placement alone suggests.

In-person lower-level classes generate the loudest difficulty complaints; online stats is also harsh.

Is attendance flexible?

Mandatory

32/100

as required and warn that skipping means you will not pass.

and in-person tags and comments.

Is this professor recommended?

Depends

42/100

About half the class loves his rigor and help while the other half urges avoidance due to tone, pace, and grading.

Online lean more negative overall; in-person splits by course level and student readiness.

Course guide

See how this professor fits your week.

Grading

Harsh

22/100

and near-impossible take-home quizzes frequently cited.

Format shift

; online also suffers from delayed grade posting.

Workload

Heavy

20/100

, and intense take-homes create an overwhelming ongoing load.

Format shift

; online students also call homework keys messy.

Teaching experience

Average

42/100

He knows the math and helps strong students deeply, but many report mumbling, tangents, skipped steps, and belittling interactions.

Format shift

and many online complaints.

Assessment method

FocusOnExams

72/100

Tests, quizzes, and hard take-home assessments outweigh ordinary .

Format shift

; online also flags graded-by-few-things and .

Luni fit check

Weigh these signals against your actual schedule.

Get help balancing workload, grading, and timing when no option is an obvious fit.

Course format

Compare the in-person and online experience.

Classroom format

In person

43 reviews

High confidence · Best fit for Self Taught Pro

upper-level fans praise rigor and office hours, while many algebra/stats students feel belittled and lost.

Main concern

Harsh interpersonal tone plus heavy homework and and fail risk for average students.

What students said

“This is my first year in college and out of all of my professors, he makes you feel stupid for not knowing how to do the math.”
MATH117

“expect to put in the work to learn a lot on your own. However, he is there and ready to help at any time.”
MATH210

“ .”
MATH131

Remote format

Online

7 reviews

Medium confidence · Best fit for Hardcore Learner

Online sections draw sharp criticism for , and tough grading, with a minority still praising support.

Main concern

and breakout-room heavy classes leave students unsure what they know.

What students said

“ and keys are overcomplicated, lectures are hours of rambling.”
MATH117

“Not only is he SUPER slow to grade homework and ever find.”
MATH117

“He has office hours every week day and . He grades pretty tough but you do well if you really work hard.”
MATH210

Exam style

Know what to expect from exams and major assignments.

Exams and as very hard and unforgiving, with limited hand-holding.

Hard testsTake-home quizzesTest heavyTough graderSlow grading online

Assessment risk

Strict

30/100

Low score means less forgiving assessment conditions.

In person

and especially brutal take-home quizzes that force heavy math-lab time.

Hard examsImpossible take-home quizzesTest heavy

“ . They are so irrelevant and a complete waste of time.”
MATH131

“ , and .”
MATH138

Online

Online reviews emphasize tough grading and ; exam security details are not clearly proven.

Tough graderSlow gradingTest heavy

“he is the .”
MATH117

“The and he's very slow about it”
MATH04

Student evidence

See what students actually said.

Top student voice
“Take this class if you want to be treated like an adult. if you aren't ready to work for it.”
Voice snapshots generated from 50 reviews (7 online, 43 in-person), contrasting self-driven success stories with harsh lower-level outcomes. Credibility rating: High.

🎯 Teaching Quality

42/100

“I think that Jeff knows his stuff, but I dont think that he knows how to communicate it effectively.”

🧱 Workload & Difficulty

20/100

“Lots of HW! , but also computer hw.”

😠 Classroom Climate

25/100

“He belittles his students and expects us to know things that we don't.”

👍 For Self-Driven Students

70/100

“Jeff is rad... Super flexible, super nice, very funny guy. .”

Theme 1

👨‍🏫 About Teaching Style

He makes you learn the material by yourself rather than teaching it in class.
mumbles a lot and goes off on irrelevant tangents
.

Theme 2

📈 About Difficulty & Grades

the
if you put in the work you will succeed

Theme 3

💻 About Online Experience

and keys are overcomplicated
most class time is spent in
lectures are hours of rambling

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

Lifetime ratings

88/100

Evidence confidence

Fifty reviews with both online and , and consistent conflict between rigor fans and overwhelmed students.

Inside 50 stored ratings

Quality ratings

5 out of 534

4 out of 511

3 out of 510

2 out of 511

1 out of 527

Course coverage

MATH11718 reviews

MATH13111 reviews

MATH2108 reviews

MATH1075 reviews

MATH1383 reviews

Show 4 more courses

MATH1502 reviews

MATH041 review

MATH2201 review

STATS1171 review

Reported outcomes

B range results lead the reported letter grades.

39 reported outcomes

A range

A+ 3 · A 6

B range

B+ 3 · B 7 · B- 1

C range

C 8

D range

No reported values

F

F 2

No letter grade reported

Drop/Withdrawal 2 · Not sure yet 7

Jeffrey Gray

Only take Gray if x x x x x x x and x x x x; otherwise avoid.

Four answers before you build your schedule.

HardWork

Challenging

Mandatory

Depends

See how this professor fits your week.

Compare the in-person and online experience.

Know what to expect from exams and major assignments.

In person

Online

See what students actually said.

🎯 Teaching Quality

🧱 Workload & Difficulty

😠 Classroom Climate

👍 For Self-Driven Students

👨‍🏫 About Teaching Style

📈 About Difficulty & Grades

💻 About Online Experience

See exactly what the AI read.

Quality ratings

Course coverage

B range results lead the reported letter grades.

A range

B range

C range

D range

F

No letter grade reported

Only take Gray if and ; otherwise avoid.